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What is Steganography?

Steganography is the art of hiding information and an effort toconceal theexistence of the embedded information. It is the best way of securing message thancryptography which only conceals the content of the message not theexistence ofthe message Internet users frequently need to store, send, or receive privateinformation. The most common way to do this is to transform the datainto adifferent form. The resultingdata can be understood only bythose who know howto return

it to its original form. This method of

protecting information is known asencryption. A major drawback toencryption is that the existence of data isnothidden. Data that hasbeen encrypted, although unreadable,still exists as data. Ifgivenenough time, someone could eventually unencrypt the data. A solution tothis problem is steganography. The ancient art of hidingmessages so that they arenotdetectable. No substitution or

permutation was used. The hidden message isplain, but unsuspecting to the reader. Steganography's intent is to hide theexistence of themessage, while cryptography scrambles a message so that it cannotbe understood.

Where Steganography used:

1. Steganography can be a solution which makes it possible to sendnews andinformation

without being censored and without the fear of

the messages beingintercepted.

2. It is also possible to simply use steganography to store information on alocation. For example, several information sources like our private bankinginformation, some military secrets, can be stored in a

cover source.

3-

E-commerce allows for an interesting use of steganography. Incurrent e-commerce transactions, most users are protected by a username and password, withno real method of verifying that the